A READER WHO IS MOVING her daughter to Düsseldorf from California has asked for suggestions on what to wear to the airport. We’ve rounded up an inspiration board of chic, yet comfortable outfits from a few of the most fashionable people, from Victoria Beckham to Carolyn Baessette Kennedy to Pinterest and Instagram finds. And as she will be staying in the German city for nine days, she’s also asked what to (lightly) pack. As for that, our advice would be to layer. Perhaps a light jacket such as trench, a pair of blue jeans, a pair of black trousers, a lightweight v-neck jumper, a dress for dinner to start…